{"id":1190,"date":"2019-04-20T19:46:31","date_gmt":"2019-04-20T17:46:31","guid":{"rendered":"http:\/\/www.laser-maker.com\/?page_id=1190"},"modified":"2019-04-24T13:41:26","modified_gmt":"2019-04-24T11:41:26","slug":"06-refrigeration","status":"publish","type":"page","link":"https:\/\/www.laser-maker.com\/index.php\/alos-project\/06-refrigeration\/","title":{"rendered":"06 – Refrigeration"},"content":{"rendered":"

\"\"<\/a>The laser projector cooling system is based on a TEC module<\/span><\/p>\n

Le syst\u00e8me de refroidissement du projecteur laser est bas\u00e9 sur un module Peltier<\/span><\/p>\n

\"\"<\/a>A fine sanding is passed on the beam table<\/span><\/p>\n

Un pon\u00e7age fin est pass\u00e9 sur la beam table<\/span><\/p>\n

\"\"<\/a>I make masks for scanners, TEC module and laser diode<\/span><\/p>\n

Je r\u00e9alise des masques pour les scanners, le Peltier et la diode laser<\/span><\/p>\n

\"\"<\/a> The beam table is finally ready!<\/span><\/p>\n

La beam table est enfin pr\u00eate!<\/span><\/p>\n

\"\"<\/a>I use 3mm expanded PVC for thermal and electrical insulation<\/span><\/p>\n

j’utilise du PVC expans\u00e9 de 3mm pour l’isolation thermique et \u00e9lectrique<\/span><\/p>\n

\"\"<\/a>The air inlet passage for the Peltier<\/span><\/p>\n

Le couloir d’entr\u00e9e d’air pour le Peltier<\/span>\"\"<\/a>For this laser prototype I tried the TEC module Adafruit 1335<\/span><\/p>\n

Pour ce prototype de projecteur j’ai essay\u00e9 le module Peltier Adafruit 1335<\/span><\/p>\n

\"\"<\/a>While the heatsink and the TEC are good, the fan is mediocre …<\/span><\/p>\n

I replace it with this high performance fan<\/span><\/p>\n

Alors que le dissipateur et le Peltier sont bien, le ventilateur est m\u00e9diocre…<\/span><\/p>\n

Je le remplace donc par ce ventilateur haute performance<\/span><\/p>\n

\"\"<\/a>It is necessary to buy this thermal conductor of 1 mm thick<\/span><\/p>\n

Il est n\u00e9cessaire d’acheter ce conducteur thermique de 1 mm d\u2019\u00e9paisseur<\/span><\/p>\n

\"\"<\/a>The idea is to improve thermal conduction and increase thickness<\/span><\/p>\n

L’id\u00e9e est d’am\u00e9liorer la conduction thermique et d’augmenter l’\u00e9paisseur<\/span> \"\"<\/a> For this I cut a block of 0.8mm thick aluminum<\/span><\/p>\n

Pour cela je d\u00e9coupe une cale de 0.8mm d’\u00e9paisseur en aluminium<\/span><\/p>\n

\"\"<\/a>As well as 2 layers of thermal conductor<\/span><\/p>\n

Ainsi que 2 couches de conducteur thermique<\/span> \"\"<\/a>In all we get 8mm without compression<\/span><\/p>\n

En tout on obtient 8mm sans compression<\/span> \"\"<\/a>Then you have to make PVC insulation cuts for the beam table<\/span><\/p>\n

Ensuite il faut r\u00e9aliser les d\u00e9coupes d’isolant PVC pour la beam table<\/span><\/p>\n

\"\"<\/a>We leave a hole for the TEC module<\/span><\/p>\n

On laisse un trou pour le module Peltier<\/span> \"\"<\/a>Between the 2 layers I put an even more efficient thermal insulation<\/span><\/p>\n

Entre les 2 couches de PVC expans\u00e9 se trouve un meilleur isolant thermique
\n<\/span><\/p>\n

\"\"<\/a>An insulation sandwich that should be between 6 and 7 mm thick compressed
\n<\/span><\/p>\n

Un sandwich d’isolation qui doit faire entre 6 et 7 mm d\u2019\u00e9paisseur compress\u00e9<\/span> \"\"<\/a>This packaging insulation is less thick and therefore perfectly suitable<\/span><\/p>\n

Cet isolant d’emballage est moins \u00e9pais et donc convient parfaitement<\/span> \"\"<\/a> The TEC module will be fixed using 3 aluminum bars of 1.5mm<\/span><\/p>\n

Le module Peltier va \u00eatre fix\u00e9 \u00e0 l’aide de 3 barres aluminium de 1.5mm<\/span><\/p>\n

\"\"<\/a>3.5mm holes allow to use insulators for transistors<\/span><\/p>\n

Les trous de 3.5mm permettent d’utiliser des isolants pour transistors<\/span> \"\"<\/a>This fastening system makes it possible to limit thermal bridges<\/span><\/p>\n

Ce syst\u00e8me d’attache permet de limiter les ponts thermiques<\/span><\/p>\n

\"\"<\/a>Setting up the temperature sensor with electrical insulation<\/span><\/p>\n

Mise en place du capteur de temp\u00e9rature avec de l’isolant \u00e9lectrique<\/span><\/p>\n

\"\"<\/a>Put in the thread lock before screwing<\/span><\/p>\n

Placer du frein filet avant le vissage<\/span><\/p>\n

\"\"<\/a>There are 6 screws to prepare<\/span><\/p>\n

Il y a 6 vis \u00e0 pr\u00e9parer<\/span><\/span> \"\"<\/a>The final screwing is done gradually on each screw<\/span><\/p>\n

Le vissage d\u00e9finitif se fait progressivement sur chaque vis<\/span> \"\"<\/a>Finally I add expanded PVC on the partitions<\/span><\/p>\n

Pour finir j’ajoute du PVC expans\u00e9 sur les cloisons<\/span> \"\"<\/a>Now the input air goes directly into the Peltier module<\/span>
\nA test run must cool the beam table<\/span><\/p>\n

Maintenant l’air rentre directement dans le module Peltier<\/span>
\nUn test de fonctionnement doit reffroidir la beam table<\/span><\/p>\n

Step 07 – Heat extraction \/ \u00c9tape 07 Extraction de la chaleur<\/a><\/p>\n

Back to summary \/ Retour au sommaire<\/a><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

The laser projector cooling system is based on a TEC module Le syst\u00e8me de refroidissement du projecteur laser est bas\u00e9 sur un module Peltier A fine sanding is passed on the beam table Un pon\u00e7age fin est pass\u00e9 sur la beam table I make masks for scanners, TEC module and laser diode Je r\u00e9alise des […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":111,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1190","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/pages\/1190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/comments?post=1190"}],"version-history":[{"count":13,"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/pages\/1190\/revisions"}],"predecessor-version":[{"id":1328,"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/pages\/1190\/revisions\/1328"}],"up":[{"embeddable":true,"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/pages\/111"}],"wp:attachment":[{"href":"https:\/\/www.laser-maker.com\/index.php\/wp-json\/wp\/v2\/media?parent=1190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}